Inflatable habitat - Revision history

Michel Lamontagne at 17:00, 13 November 2024

2024-11-13T17:00:28Z

Michel Lamontagne at 17:00, 13 November 2024

2024-11-13T17:00:14Z

Michel Lamontagne at 17:00, 13 November 2024

2024-11-13T17:00:01Z

Michel Lamontagne: /* Disadvantages */

2024-11-13T16:58:37Z

Disadvantages

Michel Lamontagne at 15:38, 5 November 2024

2024-11-05T15:38:17Z

RichardWSmith: /* Disadvantages */ Inflatables likely to have rounded tops.

2024-11-02T21:50:08Z

Disadvantages: Inflatables likely to have rounded tops.

RichardWSmith: /* Disadvantages */ grammar

2024-11-02T21:47:43Z

Disadvantages: grammar

RichardWSmith: /* Disadvantages */ Can't put sandbags on an inflatable roof.

2024-11-02T21:47:12Z

Disadvantages: Can't put sandbags on an inflatable roof.

Michel Lamontagne: /* Example */

2022-09-26T17:05:36Z

Example

Michel Lamontagne: /* Benefits */

2022-09-26T17:03:24Z

Benefits

@@ Line 1: / Line 1: @@
 Surface habitats used to [[Create a settlement|create a settlement]] could be '''inflatable''' like [[NASA]]'s transhab project. The modules would be unfolded, inflated, connected together and covered with [[regolith]]. The insides of the habitats would then be outfitted.
 __NOTOC__
 ==Benefits==
 Inflatable habitats offer the most benefit to initial [[settlement|settlements]] and [[outpost|outposts]] which require buildings shipped from [[Earth]]. They offer greater space than rigid habitats of the same initial volume.

@@ Line 1: / Line 1: @@
 Surface habitats used to [[Create a settlement|create a settlement]] could be '''inflatable''' like [[NASA]]'s transhab project. The modules would be unfolded, inflated, connected together and covered with [[regolith]]. The insides of the habitats would then be outfitted.
-_NOTOC_
+__NOTOC__
 ==Benefits==

← Older revision		Revision as of 17:00, 13 November 2024
Line 1:		Line 1:
	Surface habitats used to [[Create a settlement\|create a settlement]] could be '''inflatable''' like [[NASA]]'s transhab project. The modules would be unfolded, inflated, connected together and covered with [[regolith]]. The insides of the habitats would then be outfitted.		Surface habitats used to [[Create a settlement\|create a settlement]] could be '''inflatable''' like [[NASA]]'s transhab project. The modules would be unfolded, inflated, connected together and covered with [[regolith]]. The insides of the habitats would then be outfitted.
		+	_NOTOC_

	==Benefits==		==Benefits==

@@ Line 11: / Line 11: @@
 *Although an inflatable has packing volume advantages, this may not be significant for habitats built on Mars from In-situ resources.
 *Fabrics may be susceptible to fatigue.
-*An inflatable habitat is likely to have a rounded roof, which makes stacking sandbags (for radiation protection) on it problematic.  However, pressure vessels are almost always rounded for structural reasons, so this might also be applicable to rigid habitats.
+*If the radiation protection is in the form of sandbags, an inflatable habitat is more likely to collapse.
 ==Example==

@@ Line 11: / Line 11: @@
 *Although an inflatable has packing volume advantages, this may not be significant for habitats built on Mars from In-situ resources.
 *Fabrics may be susceptible to fatigue.
-*An inflatable habitat is likely to have a rounded roof, which makes stacking sandbags (for radiation protection) on it problematic.
+*An inflatable habitat is likely to have a rounded roof, which makes stacking sandbags (for radiation protection) on it problematic.  However, pressure vessels are almost always rounded for structural reasons, so this might also be applicable to rigid habitats.
 ==Example==

@@ Line 13: / Line 13: @@
 ==Example==
-A simple inflatable habitat for a Martian settlement.  The structure is extended then the volume is inflated.  Once the module is stable, it can be buried under regolith for radiation protection.  There are two floors for a total volume of xxm3 and a typical floor space of xx m2.  This design could house xx occupants.<gallery widths="200">
+A simple inflatable habitat for a Martian settlement, 8m x 20m.  The structure is extended then the volume is inflated.  Once the module is stable, it can be buried under regolith for radiation protection.  There are two floors for a total volume of about 1000m3 and a typical floor space of 240 m2.  This design could house eight occupants.<gallery widths="200">
 File:Habitat2 packed 1.jpg
 File:Habitat2 packed 2.jpg

← Older revision		Revision as of 17:03, 26 September 2022
Line 5:		Line 5:

	An Earth atmosphere pressurized inflatable habitat has an internal pressure of 5 to 10 tonnes per m2 (50 to 100 kPa). Density of regolith is about 1500 kg/m3, this corresponds to 525 kg of soil pressure per m2 at Mars gravity. So the habitat can support up to 19m of regolith. Studies have shown than a single meter of regolith may be sufficient for radiation protection for both solar storms and [[Cosmic radiation\|GCR]]<nowiki/>s.<ref>Regolth radiation protection- https://eps.utk.edu/faculty/taylor/Miller-radiation%20measurement.pdf</ref>. So an inflatable habitat may well be buried for radiation protection.		An Earth atmosphere pressurized inflatable habitat has an internal pressure of 5 to 10 tonnes per m2 (50 to 100 kPa). Density of regolith is about 1500 kg/m3, this corresponds to 525 kg of soil pressure per m2 at Mars gravity. So the habitat can support up to 19m of regolith. Studies have shown than a single meter of regolith may be sufficient for radiation protection for both solar storms and [[Cosmic radiation\|GCR]]<nowiki/>s.<ref>Regolth radiation protection- https://eps.utk.edu/faculty/taylor/Miller-radiation%20measurement.pdf</ref>. So an inflatable habitat may well be buried for radiation protection.
		+
		+	==Disadvantages==
		+	*An inflatable may be more prone to catastrophic collapse in case of structural failure, or leaks.
		+	*An inflatable might be more easily damaged by fire, and materials might be more inherently flammable.
		+	*Although an inflatable has packing volume advantages, this may not be significant for habitats built on Mars from In-situ resources.
		+	*Fabrics may be susceptible to fatigue.

	==Example==		==Example==